I was wondering if anyone out there has used one of these kits on there bike and if its worth it or not? Also my bike is an 83 750.
I've tried them a couple of times and never had any luck. I couldn't get them to tune properly. A change would make one area better but hurt another. I have used only Factory Pro kits since and every time they have worked like a dream. To answer your question about whether it's worth it, it depends on what mods you have done to the engine. You can normally get the jetting ok by just using washers from the hardware store under the needles. The main jets rarely need changed from stock.